Ed had a piece of rope 6 3/4 ft long. he cut of 3/8 ft. how much rope did ed have left? enter you answer in the box as a mixed number in simplest form

Let's first convert the first number to an improper fraction so we can perform arithmetic on it:

Now, let's get common denominators. Since 3/8 has a denominator of 8, we can multiply our, newly found, improper fraction by 2 to get a denominator of 8:

Next, subtract (because Ed cuts the rope):

Last step is to convert it back into a mixed fraction:

So, your final answer is 6 and 3/8. Hope I could help, and let me know if I can do anything else for you! :)